Biology · PYQ NEET UG 2019(1)
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Biology · PYQ NEET UG 2019(1)
Which of the following factors is responsible for the formation of concentrated urine?
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What triggers activation of protoxin to active Bt toxin of the Bacillus thuringiensis in boll worm?
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Which of the following statements is INCORRECT?
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Match the following hormones with the respective disease: i. Insulin & p. Addison's disease \ ii. Thyroxine & q. Diabetes insipidus \ iii. Corticoids & r. Acromegaly \ iv. Growth Hormone & s. Goitre \ & t. Diabetes mellitus \nSelect the correct option.
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How does steroid hormone influence the cellular activities?
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Identify the CORRECT pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.
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Placentation in which ovules develop on the inner wall of the ovary or in peripheral part is:
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Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains:
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Which of the following statements is INCORRECT?
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Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?
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In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in \( \text{F}_1 \) generation pink flowers were obtained. When pink flowers were selfed, the \( \text{F}_2 \) generation showed white, red and pink flowers. Choose the INCORRECT statement from the following:
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From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:
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Select the CORRECT group of biocontrol agents.
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Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following:
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Select the INCORRECT statement.
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Match the following organisms with the products they produce:\nColumn I\ni. Lactobacillus\nii. Saccharomyces cerevisiae\niii. Aspergillus niger\niv. Acetobacter aceti\nColumn II\np. Cheese\nq. Curd\nr. Citric Acid\ns. Bread\nt. Acetic Acid\nSelect the correct option.
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The Earth Summit held in Rio de Janeiro in 1992 was called:
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Which of the following pairs of gases is mainly responsible for greenhouse effect?
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Which of the following is the most important cause for animals and plants being driven to extinction?
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Which of the following statements is NOT CORRECT?
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Phloem in gymnosperms lacks:
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Concanavalin A is:
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